Chuck mechanism capable of automatically changing tool accessories

An automatic tool replacement technology, applied in the field of machinery, can solve the problem that the operator can only hold it with one hand, which is inconvenient, and achieve the effect of functional versatility, quick replacement, and reduced labor intensity.

Active Publication Date: 2012-07-18
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the traditional collet mechanism can effectively realize the installation of tool accessories, when installing the tool accessories, it is often necessary to operate the collet mechanism and the tool accessories at the same time with both hands, whi

Method used

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  • Chuck mechanism capable of automatically changing tool accessories
  • Chuck mechanism capable of automatically changing tool accessories
  • Chuck mechanism capable of automatically changing tool accessories

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example 1:

[0058] See figure 1 , The reset component in embodiment 1 includes: a washer 7 fixedly connected to the sleeve 2, a retaining ring 6 fixedly connected to the output shaft 1 for blocking the washer 7, and a spring 8. The sleeve 2 forms a stepped surface, and the spring 8 It is arranged between the step surface and the washer 7, one end of which bears against the washer 7 and the other end against the step surface, so that the elastic energy of the spring 8 is used to drive the sleeve 2 to automatically reset. The ejection component includes: a central piece 11 partly arranged inside the cavity of the output shaft 1, an ejection spring 10 connected to the central piece 11 at one end, and a sliding pin 9 provided with a spring groove for accommodating the ejection spring 10, realized by the elastic energy of the spring Tool attachments are automatically ejected. Of course, in order to save raw materials, the sliding pin 9 may not be provided in this embodiment, ...

Example Embodiment

[0059] Example 2:

[0060] See figure 2 As an improvement of the present invention, the reset magnetic member 14 is used in the second embodiment to replace the spring 8 and the washer 6 in the first embodiment. The reset magnetic member 14 repels the magnetism of the attracting member 52, thereby using magnetic energy to drive the sliding Pin 9 resets automatically.

[0061] As a further improvement of the present invention, the following improvements can be made to the ejection assembly solution: a pair of mutually repelling first ejection magnetic pieces 13 and second ejection magnetic pieces 12 respectively connected to the center piece 11 and the sliding pin 9 are used instead of implementation. In the ejection spring in Example 1, the center piece 11 and the sliding pin 9 are further provided with grooves for accommodating the first ejection magnetic member 12 and the second ejection magnetic member 13 respectively. Use magnetic energy to automatically eject tool attachment...

Example Embodiment

[0062] Example 3:

[0063] See image 3 As another improvement of the present invention, the sliding pin 92 in the third embodiment is magnetic as a whole, instead of the sliding pin 9 and the second pop-up magnetic member 13 in the second embodiment, there is another one with the center piece 11 The connected ejecting magnetic member 15, the sliding pin 92 and the ejecting magnetic member 15 repel each other. This solution also uses magnetic energy to automatically eject tool attachments.

[0064] Of course, as a further improvement of the present invention, a magnet can also be used to make the center piece instead of the center piece 11 and the pop-up magnetic piece 15. The magnetic sliding pin 92 repels the center piece made of the magnet, and the magnetic energy is used to realize automatic The principle of the pop-up tool attachment is the same as that of the above embodiment, and will not be repeated here.

[0065] In order to ensure that the sliding pin 9 will not be ejecte...

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PUM

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Abstract

The invention discloses a chuck mechanism capable of automatically changing tool accessories, comprising an output shaft, a casing, a positioning component, an attracting component and a resetting assembly. The output shaft is provided with a through cavity for accommodating the tool accessories; the casing is arranged at the periphery of one end of the output shaft and can move relative to the output shaft; the positioning component is used for positioning the tool accessories accommodated in the output shaft; the attracting component is arranged on the output shaft and used for attracting the attracting component; the resetting assembly is arranged between the output shaft and the casing and used for driving the casing to reset; the side wall of the accommodating cavity of the output shaft is provided with a positioning hole used for accommodating the positioning component and making one part of the positioning component enter the accommodating cavity of the output shaft; the positioning component is arranged in the positioning hole; and the casing is provided with a plurality of inner wall sections which cover the periphery of the positioning hole and used for extruding or loosening the positioning component. The tool accessories can be changed automatically and more quickly by an operator by a single hand, the action of changing the tool accessories by the user is simplified, the labor intensity is reduced, the work efficiency is ensured, and the function university and extensibility and the use convenience of the electric handheld tool are realized hereby.

Description

technical field [0001] The invention relates to a tool accessory, in particular to a chuck mechanism for automatically changing tool accessories; it belongs to the field of machinery. Background technique [0002] As the use of electric hand tools becomes more and more widespread, electric hand tools with single and non-replaceable tool attachments cannot meet people's higher requirements for versatility, scalability and convenience. [0003] In actual use, it is often necessary to install different tool accessories on an electric hand tool to achieve functional expansion. On the basis of effective transmission of the tool accessories, it can effectively clamp and achieve faster replacement chucks. Mechanisms become the key to functional versatility, scalability, and convenience. [0004] Although the traditional collet mechanism can effectively realize the installation of tool accessories, when installing the tool accessories, it is often necessary to operate the collet me...

Claims

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Application Information

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IPC IPC(8): B25F5/00
Inventor 周红陶
Owner NANJING CHERVON IND
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